I'm assuming the USB power must have some internal charge pump to bump it to 9V? Anyway, I'm assuming more and more products will include USB bus power and I was curious if there were any plans to offer straight USB power or barrel-to-USB cable / adapter for users to experiment with? Perhaps options to consider for future products?

Note that I realize with the B3 specifically I can just plug in a normal barrel connector. But for other products an adapter or USB power for power would be potentially useful.